Zhao Zhongmeng, Wang Yongshuang, Li Qiang, Zhao Han, Duan Yuanliang, Wu Xiaoping, Huang Zhipeng, Li Huadong, Zhou Jian, Chen Xingyu
Fisheries Research Institute, Sichuan Academy of Agricultural Sciences, Chengdu, Sichuan, China.
Tongwei New Energy Co., Ltd, Chengdu, Sichuan, China.
Heliyon. 2024 Jul 26;10(15):e34797. doi: 10.1016/j.heliyon.2024.e34797. eCollection 2024 Aug 15.
This study used to compare the muscle nutritional quality and volatile flavor compounds of animals raised in the photovoltaic fishery culture model (PM) and the common pond breeding model (CM). Amino acids, fatty acids, and volatile flavor substances were identified and analyzed using an automatic amino acid analyzer and headspace solid phase microextraction(HS-SPME) combined with GC/MS. There were no significant differences between the two culture models in terms of general nutrients, mineral contents, and amino acid compositions in the muscles of . In the PM group, the proportion of flavor amino acids in total amino acids was higher. Based on the amino acid score () and chemical score (), it was found that methionine and cystine were the first limiting amino acids in the muscle samples. The essential amino acid index () value was approximately 77 for both models, indicating high-quality proteins. The muscles contained nine types of fatty acids, with the PM group showing significantly higher levels of both monounsaturated and total fatty acids. A total of 23 volatile flavor compounds were identified in both models. The contents of 1-nonanal, n-tridecane, and alpha-terpineol were higher when cultured in the PM. Conversely, the contents of hexanal, 2-ethylhexanol, and dipentene were lower in the PM group. The photovoltaic fishery culture model has the potential to enhance income through photovoltaic power generation. In addition, this study found that the fatty acid composition of was improved in the PM, without compromising muscle composition or flavor. These results provide a theoretical basis for evaluating the meat quality of under different culture models and offer data to support and guide the promotion of the PM.
本研究旨在比较光伏渔业养殖模式（PM）和普通池塘养殖模式（CM）下养殖动物的肌肉营养品质和挥发性风味化合物。使用自动氨基酸分析仪以及顶空固相微萃取（HS-SPME）结合气相色谱/质谱联用技术对氨基酸、脂肪酸和挥发性风味物质进行鉴定和分析。两种养殖模式下，所养殖动物肌肉中的常规营养成分、矿物质含量和氨基酸组成均无显著差异。在PM组中，呈味氨基酸在总氨基酸中的比例更高。基于氨基酸评分（AAS）和化学评分（CS）发现，蛋氨酸和胱氨酸是肌肉样本中的第一限制氨基酸。两种模式下的必需氨基酸指数（EAAI）值均约为77，表明蛋白质质量较高。肌肉中含有九种脂肪酸，PM组的单不饱和脂肪酸和总脂肪酸水平均显著更高。在两种模式下共鉴定出23种挥发性风味化合物。在PM模式下养殖时，1-壬醛、正十三烷和α-松油醇的含量较高。相反，PM组中己醛、2-乙基己醇和双戊烯的含量较低。光伏渔业养殖模式具有通过光伏发电增加收入的潜力。此外，本研究发现，在PM模式下养殖动物的脂肪酸组成得到改善，同时不影响肌肉组成和风味。这些结果为评估不同养殖模式下养殖动物的肉质提供了理论依据，并为支持和指导PM模式的推广提供了数据。
